PubMed Health⌕ Search

Biomedical subjects

Grace H Elta

Publications and source records attributed to Grace H Elta.

13 recordsLinked to original sources

Pharyngeal anesthesia during sedated EGDs: is "the spray" beneficial? A meta-analysis and systematic review.

BACKGROUND: Pharyngeal anesthesia is widely used as an adjunct to sedation during upper endoscopy. Methemoglobinemia and anaphylactic reactions are rare but serious complications of topical anesthetic agents. Individual studies produce variable results about the effectiveness of pharyngeal anesthesia in improving patient tolerance. OBJECTIVE: A systematic review was performed to evaluate the effectiveness of pharyngeal anesthesia in improving patient tolerance and ease of endoscopy during sedated upper endoscopy. DESIGN: A MEDLINE search, an EMBASE search, and manual searches were performed to identify pertinent English language articles. Randomized controlled trials (RCT) comparing the efficacy of pharyngeal anesthesia to placebo or no treatment were identified. Duplicate data extraction about patient tolerance of the procedure and endoscopist assessment regarding the ease of endoscopy was performed. RESULTS: From a pool of 53 studies, 5 RCTs evaluated a total of 491 patients and provided interpretable data. Patients who rated their discomfort during the sedated procedure as none/minimal were more likely to have received pharyngeal anesthesia (odds ratio [OR] 1.88, 95% confidence interval [CI] 1.13-3.12). Endoscopists were more likely to rate the procedure as "not difficult" for patients who received pharyngeal anesthesia (OR 2.60, 95% CI 1.63-4.17). LIMITATIONS: Lack of standardized outcome measurements and standardized sedation strategies led to heterogeneity in the patient-tolerance portion of the meta-analysis. CONCLUSIONS: Pharyngeal anesthesia before upper endoscopy improves ease of endoscopy and also improves patient tolerance.

Anesthesia, Local↗

Sphincter of Oddi Dysfunction.

Sphincter of Oddi dysfunction (SOD) is a benign noncalculous obstruction of bile or pancreatic drainage at the level of the sphincter of Oddi. The disorder is clinically associated with either biliary pain or idiopathic pancreatitis, depending on the portion of the sphincter affected. Patients with suspected SOD are subdivided into three categories: these are type I, II, and III, depending on associated clinical evidence for the diagnosis. Multiple noninvasive tests have been utilized to aid in the diagnosis but have been complicated by poor sensitivity and specificity. Sphincter of Oddi manometry is the gold standard for confirming the diagnosis, although questions remain about its sensitivity and specificity. Sphincterotomy of the affected portion of the sphincter is the treatment of choice and has been shown effective for palliation of symptoms in two sham-controlled studies of patients with suspected type II biliary SOD.

Journal Article↗

Women patients' preference for women physicians is a barrier to colon cancer screening.

BACKGROUND: The preference of women patients for women physicians has been shown in many specialties. Women patients awaiting a lower endoscopy have been shown to have a preference for women endoscopists. The reasons for this preference and the strength of this preference have not been studied in the primary care setting. METHODS: A questionnaire was given to female patients who were waiting for primary care appointments at 4 offices. Patients reported sociodemographic characteristics, experiences with colorectal cancer (CRC), barriers to CRC screening, gender preference of their physician, the significance, and reasons for this preference. RESULTS: A total of 202 women patients aged 40 to 70 years (mean 53 years) completed the questionnaire. Of these patients, 43% preferred a woman endoscopist, and of these, 87% would be willing to wait >30 days for a woman endoscopist, and 14% would be willing to pay more for one. The most common reason (in 75%) for this gender preference was embarrassment. Univariate analysis revealed that gender of the primary care physician (PCP), younger patient age, current employment, and no previous history of colonoscopy were predictors of preference for a woman endoscopist. Of these variables, only female gender of the PCP (OR 2.84: 95% CI[1.49, 5.40]) and employment (OR 2.4: 95% CI[1.23, 4.67]) were positive predictors for a woman endoscopist preference by multivariable analysis; 5% stated that they would not undergo a colonoscopy unless guaranteed a woman endoscopist. The sole independent factor associated with adherence to screening was PCP recommendation (OR 2.93: 95% CI[1.63, 5.39]). CONCLUSIONS: Women patients frequently prefer a woman endoscopist, and this preference is reported as being strong enough to delay the procedure and to incur personal expense. It is an absolute barrier to endoscopy according to 5% in this subset of women surveyed. Interventions must be made in the primary care setting to address this issue and to increase the participation of women patients in CRC screening.

Adult↗

Efficiency in endoscopy with improvements in instrumentation.

This article explores ways in which developments in endoscopic instrumentation might be used to improve efficiency. While this holds great promise, it is important to first define efficiency and make sure that the goals for improving efficiency through technology will actually benefit patients and physicians.

Efficiency, Organizational↗

The relationship of bile duct crystals to sphincter of Oddi dysfunction.

Bile duct crystals collected either from the duodenum after gallbladder contraction or directly from bile duct aspiration are surrogates for gallbladder stones and microlithiasis. Whether bile crystals also serve as surrogates for bile duct stones or microlithiasis that forms in the bile duct after cholecystectomy is not known based on current data. Sphincter of Oddi dysfunction (SOD), due either to muscular spasm or sphincter fibrosis, is a cause of bile duct obstruction. Almost all of the literature on SOD involves patients who have had a prior cholecystectomy. Intuitively, obstruction at the SO following cholecystectomy would seem to lead to biliary stasis and predispose patients to bile duct microlithiasis. However, a recent study did not find bile duct crystals in patients with manometrically diagnosed SOD. The reason for this is unknown, although we hypothesize that cholesterol and bilirubinate crystals are not surrogates for brown pigment stones commonly found in patients following cholecystectomy.

Cholecystectomy↗

Intrasphincteric botulinum toxin versus pneumatic balloon dilation for treatment of primary achalasia.

GOALS: Despite a high success rate, pneumatic dilatation for achalasia is accompanied by a significant risk of esophageal perforation. Injection of botulinum toxin (botox) into the lower esophageal sphincter (LES) can lead to improvement in symptoms with reduced risk of complications. Direct comparisons of the two techniques are needed to define their role in clinical management. STUDY: We compared pneumatic dilatation to botox for patients with achalasia using a double blind, randomized study design. Patients underwent clinical, manometric, radiographic and endoscopic evaluation to confirm primary achalasia. They were randomized to receive either 80 units of botox into the LES or Witzel balloon dilatation. Patients also received sham dilatation or injection, respectively. The patients and investigators assessing symptom response were blinded to therapy. Symptoms and esophageal function were assessed at 3 weeks, 3 months and 1 year after therapy. Treatment failure was defined as the lack of decrease in symptom grade more than 1 or recurrence of symptoms. Patients with treatment failure crossed over to the alternative treatment. RESULTS: Thirty four patients were studied, and 31 completed the trial. Of the 18 patients randomized to Witzel dilatation, 16 (89%) of 18 remained in clinical remission. Of the two patients with treatment failure, one responded to botox injection. Of the 16 patients randomized to botox, (38%) 6 of 16 remained in clinical remission. Four patients had initial failure, and 6 relapsed at a mean of 4 months after therapy. Of the nine patients who crossed over to dilatation, seven responded well, but two required surgical management of perforation. Although both treatments had excellent initial clinical improvement, patients randomized to Witzel dilatation had superior long-term success ( < 0.01). CONCLUSION: Initial therapy with Witzel dilatation is associated with better long-term outcome than a single injection of botox. Because of the risk of endoscopic perforation, botox remains a viable alternative to dilatation.

Anti-Dyskinesia Agents↗

Number of responses on a review of systems questionnaire predicts the diagnosis of functional gastrointestinal disorders.

GOALS: We evaluated whether the number of positive responses on a review of systems questionnaire predicted the diagnosis of functional gastrointestinal (GI) disorders. STUDY: New patients to the University of Michigan GI clinics fill out a standardized questionnaire that includes a comprehensive review of systems which lists 87 items under 11 headings. We determined the number of items circled on the review of systems from the first 100 new patients seen in GI clinic in the year 2000. After a mean of 14 months follow-up, the final diagnoses in these patients were compared with the number of items circled on the review of systems. RESULTS: Completed questionnaires were available for review in 82/100 patients. Twenty-six patients were diagnosed with a functional GI disorder, 53 patients had a nonfunctional diagnosis, and 3 patients had no diagnosis determined. The mean number of items circled on the review of systems was 15.9 (SD = 11.2) for the functional GI group, compared with 5.9 (SD = 6.9) for the nonfunctional GI diagnosis group ( < 0.005). When the symptom headings were analyzed individually, the differences in general, gastroenterological, cardiovascular, urinary, neurological, eye, ear, nose and throat, and psychiatric symptoms were statistically significant. CONCLUSIONS: Patients with functional GI disorders have a significantly greater number of GI and non-GI symptoms on review of systems. If seven positive symptoms is used as a threshold, the standardized review of systems questionnaire had a sensitivity of 92% and specificity of 80% in detecting patients with functional GI disorders.

Adult↗

Motility and dysmotility of the biliary tract.

Muscle fibers in the biliary tree, and therefore the potential for dysmotility, are located in the gallbladder and the sphincter of Oddi. Dysmotility at either site is a potential cause of biliary pain in the absence of stones, although significant controversy persists. Diminished gallbladder emptying measured by biliary scintigraphy is an indication for cholecystectomy, although studies are contradictory regarding clinical benefit. It is likely that careful selection of patients for cholescintigraphic testing, many of whom have had missed stones or sludge, will identify patients who benefit from cholecystectomy. However, given the increased incidence of gallbladder stasis in functional gastrointestinal disorders, wide use of this study in patients with abdominal symptoms leads to a frequent failure to respond to cholecystectomy. Sphincter of Oddi dysfunction (SOD) has been best studied in patients with biliary type pain who have had prior cholecystectomy. Much less understood is the association of SOD with idiopathic recurrent acute pancreatitis and chronic pancreatitis. The least-studied clinical association for SOD is in patients with biliary pain and intact gallbladders. Elevated basal sphincter of Oddi pressure is predictive of clinical response to sphincterotomy in patients with postcholecystectomy pain in two randomized sham-controlled studies. However, patients with suspected SOD have the highest complication rate from endoscopic retrograde cholangiogram and sphincterotomy, and, therefore, careful patient selection is mandatory.

Adult↗

Bile duct crystals do not contribute to sphincter of Oddi dysfunction.

BACKGROUND: Microlithiasis has been proposed as a cause of both occult gallbladder disease and of idiopathic pancreatitis. Theoretically, microlithiasis could also cause postcholecystectomy pain by causing temporary biliary obstruction and may be more common in patients with sphincter of Oddi dysfunction. The frequency of crystals in bile duct aspirates was assessed from patients with symptoms after cholecystectomy with and without elevated baseline sphincter of Oddi pressures. METHODS: A prospective analysis was performed on all patients with recurrent biliary pain after cholecystectomy who presented for ERCP and manometry between January 1998 and June 2000. All patients had aspirates obtained from the common bile duct for crystal analysis by using the aspirating port of the manometry catheter before the injection of contrast. Four to 20 mL of bile was examined by microscopy for both cholesterol and bilirubinate crystals. RESULTS: Sixty patients (83% women, mean age 44 years) were studied. Thirty-five had normal baseline biliary sphincter pressures and 25 elevated biliary baseline sphincter pressures (>40 mm Hg). Two patients in the normal pressure group and 1 in the elevated pressure group had cholesterol crystals present in their aspirate. No patient had bilirubinate crystals present. A 5% frequency of microlithiasis was identified overall. CONCLUSIONS: Bile duct crystals occur infrequently in patients with symptoms after cholecystectomy and are found in patients with normal and abnormal biliary sphincter manometry. This study suggests that the presence of bile duct crystals, or microlithiasis, does not play a role in sphincter of Oddi dysfunction.

Adult↗